Arnaldo is a distinctive boys' name in United States, ranking #9017 in 2024 with 8 recorded births. The name reached its all-time peak in 2001 with 35 births ranking #2683. Since 1996, the popularity has decreased by 72.4%. In 2024, approximately 1 in every 214,414 boys born was named Arnaldo. FALLING Recent data shows the name is currently falling.